Dimmdrive 2.1.2 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The program's installer file is generally known as Dimmdrive.exe. The software lies within Games, more precisely Utilities. This software was originally developed by Dimmdrive. We recommend checking the downloaded files with any free antivirus. The most popular versions of the Dimmdrive 2.1 and 2.0.
From the developer:
Dimmdrive is a RAM-based hard drive program designed for gamers. With Dimmdrive, you will be able to turn your PC’s RAM into a fast hard drive. Integrated with Steam, Dimmdrive includes custom configurations and syncs your savegames to your hard drive and Steam Cloud as well.
You may want to check out more software, such as Smart Mod Manager, Redblade or Source Dedicated Server, which might be similar to Dimmdrive.